DP2 - The Midbrain

Question 1

Locations and involvement (3 points)

Answer 1

-Centre of brain above Hindbrain

Question 2

Involvement (3 points)

Answer 2

-orienting movements

-processing visual, auditory and tactile sensory information (senses)

-sleep and arousal

Question 3

Reticular information

Answer 3

-Screens incoming information

-Alerts higher brain centres to important information

-Regulates arousal and alertness

Question 4

Reticular Activating System (RAS)

Answer 4

-Extends in many different directions to parts of the cerebral cortex

-Regulates arousal by either increasing or dampening activity (e.g. - RAS is less active when we go to sleep)

-Influences what we pay attention to by ‘highlighting’ information of potential importance